Unit 3 Vocabulary; Use the following word bank to make your choices and then check the next slide DENSITY, HEAT, MASS, MATTER, TEMPERATURE, VOLUME VOLUME:
The amount of space that an object takes up. Measured in Liters for liquids,
and cubic centimeters (cm3) or cubic meters (m3) for solids.
MASS:
The amount of matter in an object.
MATTER:
any substance that has mass and takes up space. It can exist in three (or 4)
different forms and is made up of tiny particles called atoms.
DENSITY:
Is a measurement of how much matter (mass) is packed into a certain volume
of a substance.
Found by dividing the mass by the volume.
Density = Mass ÷ Volume.
TEMPERATURE: A measure of the average kinetic energy of the particles that make up a
sample of matter. It will rise or lower depending on whether the particles that
make up a substance are moving faster or moving slower (heat is lost or
gained).
HEAT:
Thermal energy (it always flows from a warmer object to a cooler object).
Unit 3 Vocabulary; Use the following word bank to make your choices and then check the next slide DENSITY, HEAT, MASS, MATTER, TEMPERATURE, VOLUME VOLUME:
The amount of space that an object takes up. Measured in Liters for liquids,
and cubic centimeters (cm3) or cubic meters (m3) for solids.
MASS:
The amount of matter in an object.
MATTER:
any substance that has mass and takes up space. It can exist in three (or 4)
different forms and is made up of tiny particles called atoms.
DENSITY:
Is a measurement of how much matter (mass) is packed into a certain volume
of a substance.
Found by dividing the mass by the volume.
Density = Mass ÷ Volume.
TEMPERATURE: A measure of the average kinetic energy of the particles that make up a
sample of matter. It will rise or lower depending on whether the particles that
make up a substance are moving faster or moving slower (heat is lost or
gained).
HEAT:
Thermal energy (it always flows from a warmer object to a cooler object).
Unit 3 PARTICLE THEORY of MATTER: All matter is made up of tiny particles (like atoms and molecules).
• 
These particles are moving
• 
There are spaces between the particles
• 
These particles will move faster or slower depending on if energy (heat) is added or removed
Volume of unknown metal = 9 cubic centimeters, mass = 173.7 grams.
To determine density, divide the mass by the volume
173.9 ÷ 9 = 19.3 g/cm3. The pure substance is GOLD
Unit 3 PARTICLE THEORY of MATTER: All matter is made up of tiny particles (like atoms and molecules).
• 
These particles are moving
• 
There are spaces between the particles
• 
These particles will move faster or slower depending on if energy (heat) is added or removed
Volume of unknown metal = 9 cubic centimeters, mass = 173.7 grams.
To determine density, divide the mass by the volume
173.9 ÷ 9 = 19.3 g/cm3. The pure substance is GOLD
Unit 3 PARTICLE THEORY of MATTER: All matter is made up of tiny particles (like atoms and molecules).
• 
These particles are moving
• 
There are spaces between the particles
• 
These particles will move faster or slower depending on if energy (heat) is added or removed
Volume of unknown metal = 9 cubic centimeters, mass = 173.7 grams.
To determine density, divide the mass by the volume
173.9 ÷ 9 = 19.3 g/cm3. The pure substance is GOLD
Unit 3 Substance A Substance B Substance C 1)  Use the densi,es in the table to to iden,fy the pure substances labeled “A, B”, C” as either: water, copper, or aluminum. 2)  Iden,fy the pure substance with a mass of 3,000 g and a volume of 3 liters 3000 g ÷ 3 liters x 1000ml/liter = 1 g /ml = water Unit 3 1)  Use the densi,es in the table to to iden,fy the pure substances labeled “A, B”, C” as either: Water, copper, or aluminum. 2)  Iden,fy the pure substance with a mass of 3,000 g and a volume of 3 liters 3000 g ÷ 3 liters x 1000ml/liter = 1 g /ml = water 1.  What is deﬁned as “The amount of space something takes up? 2.  What is deﬁned as “The amount of par,cles in something? 3.  What SI variable is measured in grams? 4.  What SI variable is measured in milliliters? 5.  How many grams of maTer exist in 13 milliliters of water (at 4 degrees Celsius)? 6.  How is density measured? 7.  What are the units for density? 8.  What is the density of water (at 4 degrees Celsius)? 9.  What force of aTrac,on between the Earth and the Moon causes ,des? 10.  An astronaut's _______ would change on the moon but not their ____ Unit 3 1.  What is deﬁned as “The amount of space something takes up? Volume Unit 3 2.  What is deﬁned as “The amount of par,cles in something? Mass 3.  What SI variable is measured in grams? Mass 4.  What SI variable is measured in milliliters? Volume 5.  How many grams of maTer exist in 13 milliliters of water (at 4 degrees Celsius)? 13 grams (1 ml = 1cm3) 6.  How is density measured? Mass/Volume 7.  What are the units for density? g /cm3 Or g /ml 8.  What is the density of water (at 4 degrees Celsius)? 1 g /cm3 OR 1 g /ml 9.  What force of aTrac,on between the Earth and the Moon causes ,des? Gravity 10.  An astronaut's Weight would change on the moon but not their Mass Unit 3 Unit 3 Substance A and Liquid 1 Its about 80% under the surface of Liquid 2 so… .8 x 2 g /ml = 1.6 g /ml KNOW WHAT HAPPENS AT THE PHASE CHANGES (the ﬂat parts of the graph)!!! J F L M C A B D G KNOW WHAT HAPPENS AT THE PHASE CHANGES (the ﬂat parts of the graph)!!! J F M L G KNOW WHAT HAPPENS AT THE PHASE CHANGES (the ﬂat parts of the graph)!!! J M L KNOW WHAT HAPPENS AT THE PHASE CHANGES (the ﬂat parts of the graph)!!! PHASE CHANGE DIAGRAM GAS LIQUID SOLID PHASE CHANGE DIAGRAM GAS Mel,ng LIQUID SOLID PHASE CHANGE DIAGRAM GAS Mel,ng LIQUID Freezing SOLID Consider: color, phase change, density, uses in real life DRY ICE ICE Consider: color, phase change, density, uses in real life DRY ICE ioxid
d
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o
Carb
ICE e Both are used for cooling Water = H O 2
Consider: color, phase change, density, uses in real life DRY ICE ioxid
d
n
o
Carb
ICE e Sublimates at -‐78.5 °C Sublimates at -‐78.5 °C Both are used for cooling Water = H O 2
Melts at 0°C Created naturally